Wristwatch



FIG. 1 is a top plan view of a wristwatch showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof, the front view being a mirror image thereof;

FIG. 6 is a top plan view of another embodiment of my new design of FIGS. 1-5, all other views being identical thereto. 

The ornamental design for a wristwatch, as shown and described. 